Posted 03 October 2008 - 03:25 AM
Does the PC go through its POST (power on self test) and can you get into the BIOS setup.
If you can, change your boot options so that you boot from CD and see it you can boot from your Windows CD. If you can do this then it looks like a problem with the hard drive or operating system on it.
If you can't even get to the BIOS setup things don't look good.
As a starter, try opening up your PC (disconnect from power first) and check the power connections to your motherboard and drives etc to see if anything has come loose. Also check the cables to the hard drives and make sure any sound/graphics/add-on cards are plugged in correctly.